76764228 has 12 divisors (see below), whose sum is σ = 179116560. Its totient is φ = 25588072.

The previous prime is 76764227. The next prime is 76764257. The reversal of 76764228 is 82246767.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 76764228.

It is not an unprimeable number, because it can be changed into a prime (76764223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3198498 + ... + 3198521.

It is an arithmetic number, because the mean of its divisors is an integer number (14926380).

Almost surely, 2^76764228 is an apocalyptic number.

It is an amenable number.

76764228 is an abundant number, since it is smaller than the sum of its proper divisors (102352332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76764228 is a wasteful number, since it uses less digits than its factorization.

76764228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6397026 (or 6397024 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 76764228 is about 8761.5197311882. The cubic root of 76764228 is about 424.9974218990.

The spelling of 76764228 in words is "seventy-six million, seven hundred sixty-four thousand, two hundred twenty-eight".